A

Nickname = Formal Name

Ab = Abner
Abbie = Abigail
Abby = Abigail
Abe = Abel
Abe = Abiel
Abe = Abraham
Abe = Abram
Acer = Acera
Ada = Adeline
Addie = Adelaide
Ag = Agatha
Aggy = Agatha
Agnes = Agatha
Agnes = Nancy
Agnes = Inez
Al = Albert
Al = Alexander
Al = Alfred
Alec = Alexander
Alex = Alexander
Alf = Alfred
Amelia=Emilia*Emile
Amy = Amanda
Amy = Amelia
Andy = Andreas
Andy = Andrew
Angie = Angeline
Ann = Deanne
Ann = Hannah
Ann = Susanna
Anna = Hannah
Anna = Susanna
Anne = Hannah
Anne = Susanna
Annette = Ann
Annette = Anna
Annie = Ann
Annie = Anna
Annie = Hannah
Annie = Susanna
Appy = Apollonia
Archy = Archibald
Arnie = Arnold
Arny = Arnold
Art = Artemis
Art = Arthur
Arty = Arthur

B

Nickname = Formal Name

Bab = Barbara
Babs = Barbara
Barb = Barbara
Barney = Barnabas
Bart = Bartholomew
Barty = Bartholomew
Bass = Sebastian
Bea = Beatta
Bea = Beatrice
Beattie = Beatrice
Becky = Rebecca
Bell = Isabell
Bell = Isabella
Bella = Arabella
Bella = Belinda
Bella = Elizabeth
Bella = Isabel
Bella = Isabella
Bella = Mirabel
Belle = Mabel
Belle = Sybil
Ben = Benedict
Ben = Benjamin
Ben = Ebenezer
Beppe = Giuseppe
Beppino = Giuseppe Bert = Delbert
Bert = Egbert
Bertie = Albert
Bertie = Gilbert
Bess = Elizabeth
Bessie = Elizabeth
Beth = Elizabeth
Beto = Alberto
Betsy = Elizabeth
Betty = Elizabeth
Bev = Beverly
Biddy = Obedience (f)
Bill = William
Bob = Robert
Burt = Burton
Burt = Egbert
Butch = (Butch is a common nickname used to separate "Sr" from "Jr" mainly in cultures with German backgrounds. Typically the father (Sr) goes by his first name, while the son (Jr) will be referred to as "Butch" by family and friends.)
 

C

Nickname = Formal Name

Cal = Caleb
Cal = Calvin
Carol = Caroline
Caroline = Callie
Cassie = Cassandra
Cathy = Catherine
Caty = Catherine
Cecily = Cecilia
Charlie = Charles
Chet = Chester
Chris = Christian
Chris = Christine
Chris = Crystal
Chuck = Charles
Cindy = Cynthia
Cindy = Lucinda
Cissy = Cecilia
Cissy = Clarissa
Claus = Nicholas
Cleat = Cleatus
Clem = Clement
Clem = Clementine
Cliff = Clifford
Cliff = Clifton
Clo = Chloe
Connie = Constance
Connie = Cornelia
Conny = Cornelia
Cora = Corinne
Corky = Courtney
Cory = Cornelius
Creasey = Lucretia
Crissy = Christina
Crissy = Christine
Cy = Cyrus
Cyndi = Cynthia

D

Nickname = Formal Name

Daisy = Margaret
Dan = Daniel
Danny = Daniel
Dave = David
Davy = David
Deb = Deborah
Debby = Deborah
Dee = Deanne
Deedee = Diedre
Delia = Bridget
Delia = Cordelia
Delia = Fidelia
Della = Delilah
Derick = Frederick
Di = Diana
Di = Diane
Dicey = Edith
Dicey = Elizabeth
Dicey = Eurydice
Dick = Richard
Didi = Diana
Didi = Diane
Doc = name given to 7th child
Doctor = name given to 7th child
Dodie = Delores
Dolly = Dorothy
Dolly = Margaret
Dolly = Martha
Donnette = Donnetta
Dora = Dorothy
Dora = Eudora
Dora = Isadora
Dotty = Dorothy
Doug = Douglas
Drew = Andrew

E

Nickname = Formal Name

Eck = Alexander
Ed = Edmund
Ed = Edward
Edie = Edith
Effie = Euphemia
Elaine = Eleanor
Eli = Elijah
Eli = Elisha
Eliza = Elizabeth
Ella = Eleanor
Ella = Gabriella
Ella = Luella
Ellen = Eleanor
Ellie = Danielle
Ellie = Eleanor
Ellie = Emily
Ellie = Gabriella
Ellie = Luella
Elly = Eleanor
Eloise = Heloise
Elsie = Elizabeth
Emily = Emeline
Emma = Emily
Eph = Ephraim
Erma = Emily
Erna = Earnestine
Ernie = Earnest
Ernie = Earnestine
Essie = Esther
Etta = Loretta
Ev = Evangeline
Ev = Evelyn
Eve = Evelyn
Evie = Evelyn

F

Nickname = Formal Name

Fan = Frances
Fanny = Frances
Fanny = Veronica
Fay = Faith
Fina = Josephine
Flo = Florence
Flora = Florence
Flossie = Florence
Fran = Frances
Frances = Franziska
Frank = Francis
Frank = Franklin
Frankie = Frances
Fred = Ferdinand
Fred = Frederick
Fred = Gottfried
Freddie = Frederick
Fritz = Frederick

G

Nickname = Formal Name

Gab = Gabriel
Gabby = Gabrielle
Gabe = Gabriel
Gene = Eugene
Genny = Gwenevere
Geoff = Geoffrey
Gerry = Gerald
Greg = Gregory
Guiseppe = Joseph
Gus = Augustus
Gus = Gustaf

H

Nickname = Formal Name

Hal = Henry
Ham = Hamilton
Hank = Henry
Hanna = Johanna
Hans = Johan
Hans = Johannes
Harry = Henry
Harry = Horace
Hattie = Harriet
Helen = Eleanor
Hester = Esther
Hettie = Mehetabel
Hetty = Mehetabel

I

Nickname = Formal Name

Ibby = Elizabeth
Iggy = Ignatius
Issy = Isabella
Issy = Isadora

J

Nickname = Formal Name

Jack = John
Jack = Jackson
Jackie = Jacqueline
Jake = Jacob
Jamie = James
Jan = Jennifer
Jane = Janet
Jane = Virginia
Janet = Jane
Jed = Jedediah
Jeff = Jeffrey
Jennifer = Winifred
Jen = Jane
Jennie = Jane
Jenny = Jennifer
Jeremy = Jeremiah
Jerry = Jeremiah
Jerry = Gerald
Jill = Julia
Jim = James
Jimmy = James
Joe = Joseph
Joey = Joseph
Johnny = John
Jon = Jonathan
Josh = Joshua
Joshua = Jasper
Josie = Josephine
Joy = Joyce
Judy = Judith

K

Nickname = Formal Name

Kate = Catherine
Kathy = Katherine
Kathy = Kathlene
Katie = Katherine
Kissy = Calista
Kit = Christopher
Kitty = Catherine
Klaus = Nicholas

L

Nickname = Formal Name

Lana = Eleanor
Larry = Lawrence
Lawrey = Lawrence
Len = Leonard
Lena = Magdalena
Leno = Felipe
Lenora = Eleanor
Leo = Leonard
Leon = Leonard
Les = Leslie
Lettie = Letitia
Lew = Lewis
Libby = Elizabeth
Liddie = Lydia
Lila = Delilah
Lilly = Lydia
Lisa = Elisa
Liz = Elizabeth
Liza = Elizabeth
Lizzie = Elizabeth
Lola = Delores
Lorrie = Lorraine
Lottie = Charlotte
Lou = Louis
Louie = Louis
Lucy = Lucille
Lucy = Lucinda
Lula = Luella

M

Nickname = Formal Name

Mabel = Mehitable
Maddie = Madeline
Maddy = Madeline
Madge = Margaret
Maggie = Margaret
Maggy = Margaret
Mame = Margaret
Mame = Mary
Mamie = Margaret
Mamie = Mary
Manda = Amanda
Mandy = Amanda
Mandy = Samantha
Manny = Emanuel
Manthy = Samantha
Marcy = Marcia
Marge = Margaret
Marge = Marjorie
Margie = Margaret
Margie = Marjorie
Marty = Martha
Marv = Marvin
Mat = Mathew
Matt = Mathew
Matt = Matthias
Maud = Magdalene
Maud = Matilda
Maude = Magdalene
Maude = Matilda
Maury = Maurice
Max = Maximilian
Max = Maxwell
May = Margaret
Meg = Margaret
Mel = Melvin
Mena = Philomena
Merv = Mervin
Meta = Margareta
Mick = Michael
Mickey = Michael
Midge = Margaret
Mike = Michael
Millie = Amelia
Millie = Emeline
Milly = Millicent
Milt = Milton
Mimi = Mary
Mimi = Wilhelmina
Mina = Wilhelmina
Mini = Minerva
Minnie = Minerva
Mira = Elmira
Mira = Mirabel
Mischa = Michael
Mitch = Mitchell
Moll = Martha
Moll = Mary
Molly = Martha
Molly = Mary
Mona = Ramona
Mort = Mortimer
Mort = Morton
Morty = Mortimer
Morty = Morton
Mur = Muriel
Myra = Almira

N

Nickname = Formal Name

Nab = Abel
Nabby = Abigail
Nacho = Ignacio
Nadia = Nadine
Nan = Ann
Nan = Hannah
Nan = Nancy
Nana = Ann
Nana = Hannah
Nana = Nancy
Nancy = Ann
Nancy = Anna
Nancy = Agnes
Nate = Nathan
Nate = Nathaniel
Ned = Edmund
Ned = Edward
Ned = Norton
Neely = Cornelia
Neil = Cornelius
Neil = Edward
Nell = Cornelia
Nell = Eleanor
Nell = Ellen
Nell = Helen
Nellie = Helen
Nelly = Cornelia
Nelly = Eleanor
Nelly = Helen
Nessie = Agnes
Nettie = Jeanette
Netty = Henrietta
Nicie = Eunice
Nick = Dominic
Nick = Nicholas
Nicy = Eunice
Nikki = Nicole
Nina = Ann
Nita = Anita
Nita = Juanita
Noni = Ione
Noni= Nora
Noni = Eleanor
Noni = Elnora
Nora = Eleanor
Nora = Elnora
Nora = Honora
Norm = Norman

O

Nickname = Formal Name

Obed = Obediah
Ollie = Oliver
Ora = Aurillia
Ora = Corinne

P

Nickname = Formal Name

Pablo = Paul
Pacho = Francisco
Paco = Francisco
Paddy = Patrick
Pam = Pamela
Pancho = Francisco
Pat = Martha
Pat = Matilda
Pat = Patricia
Pat = Patrick
Patsy = Martha
Patsy = Matilda
Patsy = Patricia
Patty = Martha
Patty = Matilda
Patty = Patricia
Peg = Margaret
Peggy = Margaret
Penny = Penelope
Pepa = Josefa
Pepe = José
Peppe = Giuseppe
Percy = Percival
Pete = Peter
Phelia = Orphelia
Phil = Philip
Phyl = Phyllis
Polly = Mary
Polly = Paula
Prissy = Priscilla
Prudy = Prudence

Q

Nickname = Formal Name

Quil = Aquilla
Quillie = Aquilla

R

Nickname = Formal Name

Rafaelle= Rufus=Rafe=Ralph= Raphael
Randy = Miranda
Randy = Randall
Randy = Randolph
Rasmus = Erasmus
Ray = Raymond
Reba = Rebecca
Reg = Reginald
Reggie = Reginald
Rena = Irene
Rich = Richard
Richie = Richard
Rick = Eric
Rick = Frederick
Rick = Garrick
Rick = Patrick
Rick = Richard
Rita = Clarita
Rita = Margaret
Rita = Margarita
Rita = Norita
Rob = Robert
Rod = Roderick
Rod = Rodney
Rod = Rodrigo
Rodie = Rhoda
Ron = Aaron
Ron = Reginald
Ron = Ronald
Ronnie = Veronica
Ronny = Ronald
Rosie = Rosalind
Rosie = Rosemary
Rosie = Rosetta
Rowena = Rhoana
Roxy = Roxanne
Roy = Leroy
Rudy = Rudolph
Russ = Russell

S

Nickname = Formal Name

Sadie = Sally
Sadie = Sarah
Sal = Sarah
Sally = Sarah
Sam = Samuel
Sandy = Alexander
Sandy = Sandra
Sarah = Susan
Sene = Asenath
Senga = Agnes
Senie = Asenath
Sherm = Sherman
Si = Cyrus
Si = Matthias
Si = Silas
Sibella = Isabella
Sid = Sidney
Silla = Drusilla
Silla = Priscilla
Silvie = Silvia
Sis = Cecilia
Sis = Frances
Sissy = Cecilia
Sol = Solomon
Stacia = Eustacia
Stacy = Anastasia
Stacy = Eustacia
Stan = Stanislas
Stan = Stanly
Star = Stella
Stella = Estella
Stella = Estelle
Stella = Esther
Steve = Steven
Steven = Stephen
Stew = Stewart
Stophel = Christopher
Sue = Susan
Sue = Suzanne
Sukey = Suzanna
Susan = Sarah
Susan = Susanna
Susie = Susan
Susie = Suzanne
Suzy = Susan
Suzy = Suzanne

T

Nickname = Formal Name

Tad = Edward
Tad = Thadeus
Ted = Edmund
Ted = Edward
Ted = Theodore
Teddy = Edward
Teddy = Theodore
Telly = Aristotle
Terry = Theresa
Terza = Theresa
Tess = Elizabeth
Tess = Theresa
Theo = Theobald
Theo = Theodore
Tia = Antonia
Tibbie = Isabella
Tilda = Matilda
Tilly = Matilda
Tilly = Otilia
Tim = Timothy
Timmy = Timothy
Tina = Albertina
Tina = Augustina
Tina = Christina
Tina = Christine
Tina = Earnestine
Tina = Justina
Tina = Martina
Tish = Letitia
Toby = Tobias
Tom = Thomas
Tony = Anthony
Tracy = Theresa
Trina = Katherina
Trixie = Beatrice
Trudi = Gertrude
Trudy = Gertrude

U

Nickname = Formal Name

Ursie = Ursula
Ursy = Ursula

V

Nickname = Formal Name

Vangie = Evangeline
Vern = Vernon
Vi = Viola
Vi = Violet
Vic = Victor
Vicky = Victoria
Vin = Galvin
Vin = Vincent
Vina = Alvina
Vina = Lavina
Vinny = Vincent
Virg = Virgil
Virgie = Virginia
Viv = Vivian
Vonnie = Yvonne

W

Nickname = Formal Name

Wally = Wallace
Wally = Walter
Walt = Walter
Web = Webster
Wendy = Gwendolen
Wes = Wesley
Will = William
Willie = Wilhelmina
Willy = William
Winn = Edwin
Winnie = Edwina
Winnie = Winifred
Woody = Woodrow

X

Nickname = Formal Name

Xina = Christina

Y

Nickname = Formal Name
Yost = Josef

Z

Nickname = Formal Name

Zac = Isaac
Zach = Zachariah
Zak = Isaac
Zeb = Zebulon
Zed = Zedekiah
Zeke = Ezekiel
Zena = Albertina
Zeph = Zephaniah